Using remote sensing of sea surface temperature (SST), height anomaly (SSHA) and chlorophyll-a (Chl-a) together with catch data, we investigated the detection persistence important pelagic habitat hotspots for skipjack tuna in Gulf Bone-Flores Sea, Indonesia. We analyzed data period between northwest southeast monsoon 2007-2011. A hotspot index was constructed from a model multi-spectrum satellite-based oceanographic relation to fishing performance. Results showed that per unit efforts...

The effects of El Nino–Southern Oscillation events on catches Bigeye Tuna (Thunnus obesus) in the eastern Indian Ocean (EIO) off Java were evaluated through use remotely sensed environmental data (sea-surface-height anomaly [SSHA], sea-surface temperature [SST], and chlorophyll a concentration), catch data. Analyses conducted for period 1997–2000, which included 1997–98 Nino 1999–2000 La Nina events. empirical orthogonal function (EOF) was applied to examine oceanographic parameters...

The Java Sea with a surface area about 467.000 km2, is located in the South East Sunda Shelf average of depth 40 meters, affected by several phenomena, whether physical or meteorological. This research aims to analyze characteristics water masses and its relationship periodicity monsoon Indonesian Throughflow Water (ITF) phenomenon. Then exchange Sea. data used are temperature salinity identify masses. Ocean currents ITF patterns winds patterns. 2015 from Infrastructure Development Space...

The potency of sea temperature difference between the surface and subsurface below thermocline that could be converted into electrical energy has been investigated using ocean datasets during January 2009 to December 2009. This study focused on seeking potential site Ocean Thermal Energy Conversion (OTEC) in Indonesian seas where most water gradient from bottom. Most OTEC resources are located South Kalimantan North Sulawesi waters within depth down 500 m. Furthermore, this emphasizes for...

Understanding the mechanisms that determine critical habitat of commercial species is one significant challenges in marine science, particularly for inhabit vast ocean worldwide. Previous investigations primarily focused on determining skipjack habitats without considering feasible size sustainable fisheries. To define hotspots and movement patterns decently sized tuna (≥50 cm) Indonesia Fisheries Management Area (IFMA) 713, Indonesia, we examined remote sensing synoptic sea surface...

Remotely derived environmental variables, including sea surface height anomaly (SSHA), temperature (SST), chlorophyll-a (chl-a), eddy kinetic energy (EKE), mixed layer data set of argo float (MLD), Niño 3.4 index, and bigeye tuna catch for the period 1997–2008, were used to analyse ocean climate variability how they relate hotspots in eastern Indian Ocean off Java. The empirical orthogonal function (EOF) was performed obtain a more detailed structure spatio-temporal region. results showed...

Symbiodiniaceae species is a dinoflagellate that plays crucial role in maintaining the symbiotic mutualism of reef-building corals ocean. Reef-building corals, as hosts, provide nutrition and habitat to endosymbiotic transfer fixed carbon for growth. Environmental stress one factors impacting physiology metabolism corals-dinoflagellate association. The environmental triggers metabolic changes resulting an increase production survival organelles related storage components such lipid droplets...

The Makassar Strait (MS) is characterized by water mass from the Pacific Ocean and one of ITF (Indonesia Throughflow) branches. It carries warm masses to Indian Ocean. This research aims analyze relationship between CPUE Eastern Little Tuna (Euthynnus affinis) oceanographic variables, likewise predict fishing area using Generalized Additive Model (GAM). method used spatial temporal analysis. data was 2015 2020. processed were sea surface temperature, chlorophyll-a, salinity, currents, level...

Abstract Introduction Microplastics (MPs) have emerged as one of the global principal marine environmental problems in many countries, including Indonesia. However, fewer studies been conducted on MP impact aquatic organisms. Thus, present case study aimed to investigate presence MPs mangrove sediments and coral reef fish Biawak Island, West Java, Materials methods The used a which samples were collected at specific locations time. Fish (15 individuals three family taxa) from sampling...

The Java Sea (JS) is one of the sea with unique characteristic especially in biodiversity and oceanographic condition. purpose this research to identify EL into level 2 based on Sea, which covers an area 467,000 Km2 average depth 50m, located Southeastern part Sunda Shelf. This uses temperature salinity data provided by INDESO, surface height (SSH) downloaded from HYCOM website, ecoregion shape file Indonesian seas delineation team. physical conditions ecoregions are influenced moonsun their...

The eddy characteristic in Southern Java Indian Ocean has been investigated and discussed, but spesifically deals about the vertical structure of is still not much. This research was conducted to determine find out biggest value kinematic energy between cyclonic anticyclonic eddy. data set from NEMO model with parameter are current temperature 2014. By using an automated detection veertical eddies developed, it includes statistical each location, radius, energy, temperature, SSH at four...

Eddies kinetic energy (EKE) is one of the most indicators in observed phenomena upwelling and down welling generated by circular current or eddies. This research aims are to determine characteristics intensity eddies EKE its relation distribution yellowfin tuna (Thunnus albacares) Southern Java Indian Ocean. Based on Automated Detection (AED) method, it succesfully discovered many well formed Ocean through 2014. Furthermore, has a vary values depth, which tends be higher at surface layer...

Whale sharks are a leading species in Cendrawasih Bay due to its benign nature and regular appearance. Recently, whale vulnerable scarcity even extinction. One of the efforts maintain existence shark population is by knowing spatial distribution. This study aims analyze how oceanographic factors affect distribution National Park. The method used this research descriptive with quantitative approach using Generalized Additive Model (GAM) analysis. data consisted monitoring TNTC taken...

Tujuan dari penelitian ini adalah untuk mengetahui variabilitas eddy, serta karakteristik suhu dan Tinggi Permukaan Laut (TPL) di titik pusat eddy. Wilayah kajian Samudera Hindia Selatan Jawa dengan koordinat 0o – 20o LS 90o - 120o BT. Data yang digunakan data arus terdiri komponen U V, model NEMO pada 2014. Metode dalam pendeteksian eddy ialah menggunakan otomatis atau Automated Eddy Detection (AED). Hasil menunjukkan bahwa sepanjang tahun 2014 banyak ditemukannya wilayah dominan terbentuk...

The objective of the research was to analyze vertical variability water column in West Sumatra waters. data used temperature sets from Argo float instruments which were operated 2009 2011 Sumatran sea region. secondary that geostrophic current obtained Jason image satellite also anomaly data. method this is by analyzing temporally and spatially then describing while comparing result showed IOD formed June July with peak September November disintegration starts December. SST average on...

This study aims to examine the pattern of microplastic waste movement Pacific Garbage Patch (PGP) that has potential enter north Indonesia sea. very important because affected regional tourism activities, water pollution, and economics fisherman local society. The impact is widerange national economics. method used a simulation descriptive analysis. hydrodynamic trajectory particles conducted for 365 days in 2016. areas this include eastern Indonesia, Philippines, Ocean. data are wind,...

The purpose of this study was to determine the effect El Niño 2013 and 2015 in formation thermal fronts southern sea East Java Bali its correlation with Indonesian Throughflow (ITF). data that is used research were SST from Aqua MODIS, Nino index 3.4 derived CPC NOAA, Geostrophic current AVISO. method descriptive spatial temporal analysis approach. Front can be detected raster image using a Cayulla Cornilon SPL 1992 algorithm strong category difference > = 0.5 °C weak one 0.3 – 0.49 °C....

Environmental variability during El Niño Southern Oscillation (ENSO) derived from satellite imagery of Sea Surface Temperature and Chlorophyll a were investigated 2010 to 2014. This study investigates how ocean climate ENSO affects environmental conditions further addresses their relations with Eastern Little Tuna catches. Changes in events resulted perceivable variations catches, an average catches 839.6 t Niño. The La Niña event, 602.6 was less favorable for Major fishing location located...

Coastal areas have an important role and high natural resources that can be utilized for human life. Over time, the increase in population is directly proportional to activities utilization of coastal areas, which puts great pressure on areas. One pressures occur heavy pollution. This research aims see distribution metals especially Cd, Cu Pb Jakarta Bay Semarang differences metal content from two gulfs. The data used this study secondary data, consists metals, current velocity, pH water...

This study aims to determine the contribution of ocean intensity heavy rainfall in Bengkulu, Indonesia during dry season (2016-2022). The primary data used this is daily from Bengkulu Meteorology Climatology and Geophysics Agency BMKG station. In addition, supporting are also form rain parameters, 10 m wind, sea surface temperature, currents ERA5 reanalysis with temporal spatial resolution 0.05°. method a composite that calculates 64 samples rain. results showed low-speed winds formed an...

Selat Makassar adalah jalur utama yang dilewati oleh Arus Lintas Indonesia (Arlindo) sehingga kondisi oseanografinya sangat dipengaruhi karakteristik massa air Samudera Pasifik. Konsentrasi klorofil-a di terbawa Arlindo dan masuknya nutrien dari daratan karena letaknya diapit Pulau Kalimantan Sulawesi. Tujuan penelitian ini untuk menganalisis variabilitas konsentrasi dalam skala antar musiman maupun tahunan (inter-annual) yaitu fenomena El Niño Southern Oscillation (ENSO) Makassar....